past participle of do 1 .
1》 (of food) cooked thoroughly.
2》 no longer happening or existing.
3》 Brit. informal socially acceptable: therapy was not the ~ thing.
■ exclamation (in response to an offer) accepted.
a ~ deal chiefly US a plan or project that has been finalized.
~ for informal in serious trouble.
~ in informal extremely tired.
~ness noun ( informal, only in sense 1).